Home / 5,397.48-7,447.86-3,158.94

Finding the Fourth Proportional to 5,397.48, 7,447.86 and 3,158.94

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Solution

The fourth proportional to 5,397.48, 7,447.86 and 3,158.94 is: 4,358.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,397.48 : 7,447.86 = 3,158.94 : x
  2. Step 2: Convert to fraction form
    5,397.48/7,447.86 = 3,158.94/x
  3. Step 3: Cross multiply
    5,397.48x = 7,447.86 × 3,158.94
  4. Step 4: Simplify right side
    5,397.48x = 23,527,342.87
  5. Step 5: Solve for x
    x = 23,527,342.87/5,397.48
  6. Step 6: Final answer
    x = 4,358.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.